SAT writing questions and grammar

<p>Although natural changes account for the extinction of some bird species, human actions such as excessive hunting, habitats being destroyed, and predators being introduced are more common causes.
A) excessive hunting, habitats being destroyed, and predators being introduced
(B) excessive hunting, the destruction of habitats, and the introduction of predators
(C) excesses in hunting, in destroying habitats, and introducing predators
(D) hunting was excessive, habitats were destroyed, and predators introduced
(E) the fact that they hunted excessively, destroyed habitats, and introduced predators</p>

<p>Would the parallelism be fixed for answer choice C if it had said "excesses in hunting, in destroying habitats, and in introducing predators"? However the meaning would still be inconsistent with the original sentence making this answer choice still wrong, right?</p>

<p>answer was B btw</p>

<p>Exhibitions of some works by modern artists have spurred political controversy over should they continue federal support of art.</p>

<p>(A) should they continue federal support of art
(B) should federal support of art continue
(C) continued federal support of art
(D) whether art should be continued to be supported federally
(E) federal support of art and continuing it</p>

<p>The error in this sentence occurs when the phrase "controversy over" "whether" or "should" appears right? I'm not good at grammar so I'm not sure my thinking is correct: since "controversy over" indicates two antipodal options and , similarly, "whether" and "should" indicates two options, it is repetitive to include whether or should after "controversy over."</p>

<p>Exhibitions of some works by modern artists have spurred political arguments about whether federal support of art should continue.
How about now?^^^^^^^^</p>

<p>I chose B but
the answer was C </p>

<p>Humans have long been inventing tools, and this film documents the amazing creativity with which tools have been developed through the ages. </p>

<p>This sentence is correct as is. I had to think long and hard before choosing answer choice E. However I still don't get the sentence's full meaning. Can someone use their own words to explain what this sentence means?
They use creativity to make tools?....</p>

<p>Although the authoritarian regime accorded significant rights to the ------- of the opposition parties, their rank-and-file members still had only minimal ------- to engage in political activity.</p>

<p>(A) commoners . . opportunity
(B) dissidents . . cause
© adversaries . . inclination
(D) elites . . latitude
(E) stalwarts . . compensation</p>

<p>How can I use context clues to distinguish the right answer if I didn’t know what rank-and-file meant?(I was stuck between A and D)</p>